KR20190079201A - High natural oil content nano emulsion composition improved clarity, and cosmetic composition comprising the same, and method for preparing same - Google Patents

Abstract

The present invention relates to a nano-emulsion composition comprising a high natural oil content with improved clarity, a cosmetic composition comprising the same, and a method for preparing the same. More specifically, the present invention relates to a nano-emulsion composition comprising a high natural oil content, produced by emulsifying natural oils, a surfactant, and a polyol in an appropriate mixing ratio by using a high-pressure emulsifier; a cosmetic composition; and a method for preparing the same. The nano-emulsion composition comprising a high natural oil content with improved clarity produces emulsified particles having a nano-size of 20-50 nm, and thus enables to include natural oils up to maximum 25 wt% in low-viscosity skin and essence formulations; and prevents oils from separating, and thus increases the stability when applied to cosmetic materials. In addition, the present invention, due to improved clarity, can broaden the application range of natural oils, which were conventionally limited to applications in milky-type cosmetic materials, to clear skin types or cream types.

Description

TECHNICAL FIELD The present invention relates to a nanoemulsion composition containing a high-content natural oil having improved transparency, a cosmetic composition containing the same, and a process for producing the same. BACKGROUND ART Nano-emulsion compositions,

The present invention relates to a nano-emulsion composition containing a high content of natural oil with improved transparency, a cosmetic composition containing the same, and a method of preparing the same. More specifically, the present invention relates to a nano- To a cosmetic composition containing the same, and a process for producing the same.

The emulsion refers to a liquid-liquid dispersion system in which two or more liquid phases not dispersed in one liquid phase are dispersed, and generally has a size distribution of several nanometers to several tens of micrometers.

Microemulsions having a size distribution of several micrometers to several tens of micrometers are in a thermodynamically unstable state and can be classified into various types such as flocculation, sedimentation, creaming, Ostwald ripening and coalescence. It has a property to be separated by various paths.

At this time, if the size of the emulsion particle of the disperse phase becomes smaller as the nano size, the stability of the emulsion can be greatly improved in terms of kinetic by the Brownian motion between particles, and a low viscosity emulsion having a high inner phase content can be produced It is possible not only to make a cosmetic composition having various feeling of use but also to have an advantage that the effective ingredient can be effectively delivered to the skin due to its small particle size.

Generally, a liquid-liquid dispersion system having an average diameter of 20 to 500 nm in the dispersed phase particles is referred to as a nanoemulsion although there are some differences depending on the literature.

Nanotechnology is a technology that is widely used in the industry as a very potential technology in the cosmetics market. In the field of cosmetics manufacturing, nanotechnology has been applied to improve the effective substance delivery performance by controlling the size of a structure that transmits an effective ingredient to the skin to be smaller than the size of cells constituting the skin. Further, by forming the structure in the form of a multi-layer liquid crystal film similar to the skin lipid structure, it is possible to further stabilize weak active ingredients in the external environment such as air, moisture, light, temperature, and improve the skin delivery effect.

The skin of the human body has various roles such as protecting the body from external physical, chemical, or biological stimulation, suppressing water evaporation from the inside of the skin, and maintaining the homeostasis of the human body. The skin also protects the body from harmful ultraviolet rays coming from the sun and also controls the body temperature. Skin is a sensory organ with diverse functions that can communicate with the external environment and prevents pathogens from entering. Furthermore, the condition and appearance of the skin play an important role as an indicator for easy understanding of health conditions. Thus, skin is an indispensable organization to live as a body part that receives physical, chemical, or biological injuries directly from various external factors, as well as an organization capable of healing these functional and structural injuries. However, it generally tends to increase dry skin due to aging of the skin, accumulation of persistent stress, or contaminated environment. As a cause of such skin dryness, cationic substances such as yellow dust, dust, and pollution attach to the skin to cause various skin irritations, allergies and the like, or impair the recovery function of normal skin barrier, thereby accelerating the drying of the skin. In order to prevent and alleviate this, it is important to keep the moisturizing power of the skin sufficiently by applying a moisturizer.

 Oil, hyaluronic acid, saccharides, polyols and the like are generally used as a method for increasing the moisture of the skin. Oil is derived from minerals, synthetic origin, natural oil, silicone oil, etc. It has excellent effect to give moisturizing effect, but it has disadvantage that it should be used only in creams and lotions having high viscosity. In the case of hyaluronic acid and saccharides, it is water-dispersible and easy to apply to skins and low-viscosity formulations. However, it is expensive and expensive to use because of its unique feeling of use. But it can be applied to low-viscosity formulations. However, it is disadvantageous in that it is sticky when containing too much. Ceramides which inhibit moisture loss in skin tissue of people with dry skin and function as a barrier against foreign substances on skin surface are easy to crystallize in cosmetic formulations due to their structural specificity, Or precipitation occurs.

In general, many skin-related products contain substances that can cause irritation or inflammation, so that more than 10% of people using personal care cosmetics are complaining of side effects on the skin. In particular, The use of personal care products such as cosmetics is expected to increase the skin side effects.

In addition, modern human skin is exposed to a variety of harmful environments and stresses, and is subjected to various damages. As the age of the skin lowers the physiological activity of the skin and the recovery speed of the damaged skin is slowed, the elasticity decreases, drying, wrinkles and dullness Of skin aging. Therefore, the biggest goal of cosmetics is to improve the symptoms of aging, and a variety of cosmetics are being developed for this purpose. In recent years, there has been a surge in the use of ingredients derived from natural products in cosmetics.

In order to improve the stimulation of such functional products, to suppress skin aging phenomenon and to enhance skin moisturizing power, natural extract components such as centilla mushroom extract, mashii extract, chamomile flower extract, burdock root extract, mushroom extract, grapefruit extract, And allantoin, bisabolol, and polyol.

Most of the natural ingredients are generally vulnerable to air, temperature change, moisture, light, etc., which tend to cause discoloration, discoloration and shattering, which can lead to problems such as changes in formulation, color and flavor there was. In order to prevent this, there has been developed a technology to protect natural ingredients from deterioration by external environment with nano-emulsion using nanotechnology.

However, these nanosized emulsions generally have opaque properties, and there is a tendency that turbidity changes when they are added to the formulation due to differences in the degree of suspension at each production.

Korean Patent Laid-Open No. 10-2017-0038249 (Disclosure Date: Apr. 07, 2017)

It is an object of the present invention to provide a composition which can minimize the turbidity change when added to a formulation even when a natural oil is contained in a high content and can improve the transparency And to provide a nano-emulsion composition containing the high-content natural oil.

Another object of the present invention is to provide a cosmetic composition which contains an excessive amount of a natural oil component having a high affinity with the skin and can be mildly applied to sensitive skin without irritation to improve the moisturizing ability and to improve color, The present invention provides a nano-emulsion-type cosmetic material having a nano-size smaller than a skin gap which is more stable and can be delivered from a skin to a desired site by encapsulating and stabilizing natural oil components that have undergone changes over time such as changes, changes, and the like in a nano-sized emulsion.

Another object of the present invention is to provide an effective method for producing a nano-emulsion composition having improved transparency and a cosmetic composition containing the nano-emulsion composition.

The nanoemulsion composition according to a preferred embodiment of the present invention comprises 0.1 to 2.0% by weight of a natural phospholipid derived from soybean, 10 to 20% by weight of glycerin and 0.2 to 0.5% by weight of sodium stearoylglutamate based on the total weight of the total nanoemulsion composition, And from 5 to 25% by weight of a natural oil, from 5 to 12% by weight of a silicone oil, from 0.1 to 2.0% by weight of a fatty acid and from 1.0 to 6.0% by weight of an ionic surfactant based on the total weight of the total nanoemulsion composition .

Soybean-derived natural phospholipids include hydrogenated lecithin, natural oils include apricot seed oil, macadamia nut oil, almond oil, limnades alba seed oil, jojoba oil, caprylic / capric triglyceride, Wherein the fatty acid comprises 0.2 to 1.0% by weight of cetostearyl alcohol and 0.2 to 1.0% by weight of stearic acid, based on the total weight of the total nanoemulsion composition, By weight based on the total weight of the total nano emulsion composition, 1.0-5.0% by weight of Polyglyceryl-2 Stearate, PEG (Polyethylene Glycol) -8 Stearate) in an amount of 0.5 to 2.5% by weight.

The remainder of the water phase is any one selected from the group consisting of purified water, Centella asiatica, Centella asiatica extract, chamomile flower extract, chestnut tree extract, burdock root extract, mushroom extract, By weight based on 100% by weight of the composition.

The nano-liquid crystal emulsion composition may include nano-emulsified particles having an average particle size of 20 to 50 nm.

According to another preferred embodiment of the present invention, there is provided a process for producing a soybean-derived natural phospholipid, a process for producing an aqueous phase containing glycerin and sodium stearoylglutamate; Natural oils selected from the group consisting of apricot seed oil, apricot seed oil, macadamia nut oil, almond oil, limnad des albacead oil, jojoba oil, caprylic / capric triglyceride and mixtures comprising at least one thereof, silicone Oil, fatty acid and an ionic surfactant; A first emulsification step of injecting a water phase and an oil phase and producing a bulky spherical emulsion by using a vacuum emulsification tank and a homomixer; And a second emulsification step of preparing a bulky spherical emulsion by using a high pressure type microfluidizer as a nano emulsion.

The step of preparing the water phase portion and the step of producing the oil phase portion each include stirring at a temperature of 70 to 80 DEG C and the first emulsification step includes stirring at a temperature of 70 to 80 DEG C at a speed of 1,000 to 3,000 rpm , And the second emulsification step may be performed at least once at a pressure of 500 to 1,500 bar at a temperature of 20 to 40 ° C.

Wherein the water phase comprises 0.1 to 2.0% by weight of a natural phospholipid derived from soybean, 10 to 20% by weight of glycerin and 0.2 to 0.5% by weight of sodium stearoyl glutamate based on the total weight of the total nanoemulsion composition, Wherein the oil phase further comprises 50 to 70% by weight of any one solvent selected from the group consisting of mashii extract, chamomile flower extract, chestnut tree extract, burdock root extract, mushroom extract, and mixtures thereof, 5 to 25% by weight of a natural oil, 5 to 12% by weight of cyclopentasiloxane as a silicone oil, 0.2 to 1.0% by weight of cetostearyl alcohol and 0.2 to 1.0% by weight of stearic acid as fatty acids, 1.0 to 5.0% by weight of polyglyceryl-2 stearate and 0.5 to 2.5% by weight of phage-8 stearate.

According to another preferred embodiment of the present invention, it is possible to provide a cosmetic composition comprising the nanoemulsion composition, and also to provide a cosmetic comprising the cosmetic composition. The cosmetic may be any one selected from the group consisting of a skin lotion, a milk lotion, an essence, an ampoule, a nutritional cream, an eye cream, a foundation, a bib cream, a seed cream, a sun cream, a lipstick, a lipstick and a cosmetic combination of one or more thereof.

The nano-emulsion composition containing a high-content natural oil having improved transparency and the cosmetic composition containing the nano-sized emulsified particles of the present invention can be prepared by preparing nano-sized emulsified particles having a particle size of 20 to 50 nm, , And it is possible to prevent oil separation and development and improve stability when applied to cosmetics. Further, since the transparency is improved, it is possible to widely apply the natural oil, which has been limited to the conventional emulsion type cosmetics, to the transparent skin type or the cream type.

FIG. 1 shows the particle size analysis results of the particle size of the composition of Example 1 according to the present invention.
Fig. 2 is a photograph showing the properties of Example 1, Comparative Example 1, Comparative Example 2 and Comparative Example 3. Fig.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention.

The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular presentation includes the expression of the abdomen unless the context clearly dictates otherwise. It is to be understood that the term " comprises " or " having " in the present invention is intended to specify the presence of stated features, integers, steps, operations, elements, parts, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, parts, or combinations thereof.

The nano-emulsion composition according to one embodiment of the present invention can be prepared by mixing a supernatant containing a soybean-derived natural phospholipid, a polyol and a first surfactant with a natural oil, a silicone oil, a fatty acid and an ionic surfactant (a second surfactant ).

The upper part, which is the part forming the continuous phase to make the nanoemulsion composition of the present invention, will be described in more detail.

The soybean-derived natural phospholipid in the aqueous phase may comprise an emulsifier lecithin or a hydrogenated lecithin, which is a vegetable surfactant having amphiphilic properties.

The emulsifying agent lecithin, which is a vegetable surfactant having an amphipathic property derived from soybean, contains phospholipid and glycolipid in an amount of 60 to 70%, and its function and quality may be influenced by the content of phosphatidylcholine. In general, when the content of phosphatidylcholine is 50% or less, it is a supplementary emulsifier. If the amount of phosphatidylcholine is more than 50%, it may become a raw material of liposome. When producing lecithin, hydrogenation may be carried out to convert a small amount of unsaturated fatty acid, which is present in soybeans, into glyceride, which is a saturated fatty acid. Hydrogenation type is mainly used for cosmetics.

Since lecithin uses a plant-based natural agent having high biocompatibility, it can effectively collect raw materials having no toxicity, excellent antioxidant ability, and poor compatibility, using the property of forming a liposome film, The preservability of an easy material can be improved.

Lecithin has a rectangular molecular structure on a plane where two lipophilic groups are attached to the hydrophilic part. When dispersed in water, lecithin forms a bilayer membrane instead of spherical micelles. Such a closed endoplasmic reticulum is called a vesicle, The liposomes formed from these fatty acids are generally referred to as liposomes.

The difference between micelles and liposomes is that the micelles are soluble in water in the form of a molecule when diluted, but liposomes are also present as liposomes when diluted. Liposomes generally range in size from 0.02 to 10 μm and can be divided into multilamellar vesicles (MLV) and unilamellar vesicles (ULV) according to size and shape.

The soybean-derived natural phospholipids may comprise from 0.1 to 2.0% by weight of hydrogenated lecithin based on the total weight of the total nanoemulsion composition. If the content of natural phospholipid derived from soybean is less than 0.1% by weight, formation of nanoparticles is not easy. If the content is more than 2.0% by weight, it is a costly raw material because it is an expensive raw material, A change phenomenon occurs.

The polyol may include any one selected from the group consisting of glycerin, 1,3-butylene glycol, propylene glycol, dipropylene glycol, and a mixture of at least one thereof, and more preferably, the total weight of the total nano emulsion composition And 10 to 20% by weight of glycerin. When glycerin is contained in an amount of less than 10% by weight, moisture resistance may tend to be lowered. When the amount of glycerin is more than 20% by weight, specific stickiness may occur. The content of glycerin was determined based on the characteristics of general polyols, and the content of glycerin was specified in consideration of feeling of use.

The first surfactant may comprise sodium stearoylglutamate and may comprise from 0.2 to 0.5% by weight of sodium stearoylglutamate based on the total weight of the total nanoemulsion composition. When sodium stearoylglutamate is contained in an amount of less than 0.2% by weight, the transparency of the whole nano emulsion composition is lowered. When the amount of sodium stearoylglutamate is more than 0.5% by weight, skin irritation, which is one of the characteristics of ionic surfactant, may be caused.

The remainder of the water phase is any one selected from the group consisting of purified water, Centella asiatica, Centella asiatica extract, chamomile flower extract, chestnut tree extract, burdock root extract, mushroom extract, By weight based on 100% by weight of the composition. When the solvent is contained outside the content range, the nano emulsion may be stably and not easily formed.

The upper part will be described in more detail.

Natural oils include any selected from the group consisting of apricot seed oil, macadamia nut oil, almond oil, limnad des albacead oil, jojoba oil, caprylic / capric triglyceride, and mixtures comprising one or more thereof . The natural oil may comprise from 5 to 25% by weight, more preferably from 5.0 to 20% by weight, based on the total weight of the total nanoemulsion composition. If the content of the natural oil is less than 5.0% by weight, there is a problem that the inner phase of the emulsion is too small and the stability after emulsification is poor. When the content of natural oil is more than 25% by weight, the suspension becomes high and the emulsion formulation becomes opaque. In one embodiment of the present invention, apricot seed oil, which is the cheapest among them, is applied in consideration of the price, but it is considered that more synergy effect will be provided when one or more natural oils are mixedly used.

Silicone oils can be selected from the group consisting of cyclopentasiloxane, cyclohexasiloxane, dimethicone, dimethicone copolymers, divinyl dimethicone / dimethicone copolymers, diphenyl dimethicone, methicone, phenyl triethicone, diisostearoyl triethylol And a mixture comprising at least one of the foregoing, and more preferably, the total nanoemulsion composition composition contains at least one selected from the group consisting of a total of nanoemulsion composition gums And 5 to 12 wt% of cyclopentasiloxane with respect to the weight. When the silicone oil is contained in an amount of less than 5.0% by weight, the transparency of the formulation becomes opaque. When the amount of the silicone oil is more than 12.0% by weight, the nano emulsion particles become unstable and the stability tends to be deteriorated over time.

The fatty acid may contain 0.1 to 2.0% by weight, preferably 0.4 to 2.0% by weight, based on the total weight of the total nanoemulsion composition, more preferably 0.2 to 1.0% by weight of cetostearyl alcohol based on the total weight of the total nanoemulsion composition By weight, and 0.2 to 1.0% by weight of stearic acid. Hardness formation is not easy when each of the fatty acids cetostearyl alcohol and stearic acid is contained in an amount of less than 0.2% by weight, and when it exceeds 1.0% by weight each of them, the hardness becomes too high and the use thereof is not easy. More preferably, 0.2 to 0.7% by weight of cetostearyl alcohol and stearic acid are contained, respectively, in order to control the hardness of the nanoemulsion composition.

The ionic surfactant (second surfactant) may comprise 1.0 to 6.0% by weight, preferably 3.6 to 6.9% by weight, more preferably 4.0 to 5.9% by weight, based on the total weight of the total nanoemulsion composition Lt; / RTI > More preferably, the ionic surfactant comprises 1.0 to 5.0% by weight of polyglyceryl-2 stearate, polyethylene glycol (PEG) -8 stearate (PEG) based on the total weight of the total nanoemulsion composition, 8 Stearate) in an amount of 0.5 to 2.5% by weight.

Polyglyceryl-2 stearate, and phage-8 stearate serve to stably trap natural oils to form stabilized lipid membranes. If the content of the polyglyceryl-2 stearate is less than 1.0% by weight, there is a problem that emulsification does not occur. When the content of the polyglyceryl-2-stearate is more than 5.0% by weight, emulsion form changes and a nano-sized emulsion can not be obtained. When the content of the phage-8 stearate is less than 0.5% by weight, there is a problem that emulsification does not occur. When the content is more than 2.5% by weight, transparency tends to be suspended.

The nano-liquid crystal emulsion composition may include nano-emulsified particles having an average particle size of 20 to 50 nm. If the average particle size is out of the range, it may be disadvantageous in terms of improvement of transparency and stabilization of the nano emulsion composition.

The nanoemulsion composition of the present invention may further include a nutrient component portion selectively in addition to the upper portion and the upper portion. Nutritional ingredients may be added to any of the nutritional ingredients commonly used in cosmetic ingredients.

The present invention uses natural phospholipids extracted from soybean to mild the skin without causing irritation to sensitive skin, and it is also possible to use naturally-occurring natural oils which are difficult to be formulated due to changes in color, point escape, A nano-emulsion cosmetic composition containing a high-content natural oil improved in transparency which is stably embedded in a phospholipid emulsion to help penetrate into the skin to aid in the development of its efficacy and to improve transparency and minimize the difference in the degree of suspension when added to a formulation Compositions and methods of manufacture.

According to another preferred embodiment of the present invention, there is provided a process for producing a soybean-derived natural phospholipid, a process for producing an aqueous phase containing glycerin and sodium stearoylglutamate; Natural oils selected from the group consisting of apricot seed oil, apricot seed oil, macadamia nut oil, almond oil, limnad des albacead oil, jojoba oil, caprylic / capric triglyceride and mixtures comprising at least one thereof, silicone Oil, fatty acid and an ionic surfactant; A first emulsification step of injecting a water phase and an oil phase and producing a bulky spherical emulsion by using a vacuum emulsification tank and a homomixer; And a second emulsification step of preparing a bulky spherical emulsion by using a high pressure type microfluidizer as a nano emulsion.

The step of preparing the water phase portion and the step of producing the oil phase portion each include stirring at a temperature of 70 to 80 DEG C and the first emulsification step includes stirring at a temperature of 70 to 80 DEG C at a speed of 1,000 to 3,000 rpm , And the second emulsification step may be performed at least once at a pressure of 500 to 1,500 bar at a temperature of 20 to 40 ° C.

Wherein the water phase comprises 0.1 to 2.0% by weight of a natural phospholipid derived from soybean, 10 to 20% by weight of glycerin and 0.2 to 0.5% by weight of sodium stearoyl glutamate based on the total weight of the total nanoemulsion composition, Wherein the oil phase further comprises 50 to 70% by weight of any one solvent selected from the group consisting of mashii extract, chamomile flower extract, chestnut tree extract, burdock root extract, mushroom extract, and mixtures thereof, 5 to 25% by weight of a natural oil, 5 to 12% by weight of cyclopentasiloxane as a silicone oil, 0.2 to 1.0% by weight of cetostearyl alcohol and 0.2 to 1.0% by weight of stearic acid as fatty acids, 1.0 to 5.0% by weight of polyglyceryl-2 stearate and 0.5 to 2.5% by weight of phage-8 stearate.

The present invention relates to a cosmetic composition comprising an oil phase, a water phase and a nutrient component, wherein the phospholipid extracted from soybean and purified water and an ionic surfactant are added to an oil phase containing an ionic surfactant and a fatty acid oil, And then a second emulsion is formed by adding an alcohol and an antiseptic to the emulsion, followed by treatment with a high-pressure emulsifier, and a method for producing a nano-emulsion cosmetic composition containing a high-content natural oil improved in transparency. Meanwhile, the nano-emulsion cosmetic composition containing the high-content natural oil having improved transparency according to the present invention and the method for producing the nano-emulsion cosmetic composition according to the present invention will be described in more detail below.

First, as a step of making a bulky spherical emulsion, phospholipid, glycerin and sodium stearoylglutamate extracted from soybean are dispersed in purified water and heated to 70 to 75 ° C to prepare a homogenized water phase, The oily parts including polyglyceryl-2 stearate, phage-8 stearate, cetostearyl alcohol, stearic acid and cyclopentasiloxane are mixed and heated to 70 to 75 ° C to prepare a homogenized oily portion. Then, the upper part and the upper part of the oil phase were charged into a vacuum emulsification tank capable of temperature control and stirring, and the mixture was firstly emulsified by stirring at 2,000~2,500 rpm while maintaining the temperature at 70~75 ° C. and cooled to 45~50 ° C., ≪ / RTI >

In this case, when the temperature is low during the first emulsification, the surfactant and fatty acid components contained in the oil phase are not dissolved and the oil is not emulsified. When the temperature is too high, the natural components of the water phase and the oil phase are destroyed by heat, .

Then, the emulsion is added to a high-pressure emulsifier at 25 to 40 ° C and treated with a pressure of 500 to 1,500 bar for 2 to 3 times to secondary emulsify to form a nano-emulsion composition containing a high-quality natural oil with improved transparency.

Secondary emulsification is a step of making a bulky emulsion having a large size formed into a nano-size. When the processing temperature is less than 25 ° C at this stage, the emulsion is not uniformly encapsulated in the emulsion. When the temperature exceeds 40 ° C, So that there is a problem that a uniform emulsion of nano size can not be formed.

If the treatment pressure is less than 500 bar, which is an important factor for producing a nano-sized composition, the particles can not be broken down into nano-sized particles. When the pressure exceeds 1,500 bar, the temperature rises rapidly due to friction due to too strong force. There is a problem that the particles are damaged and the particles can not be made into a nano-size by combining them.

Meanwhile, the high pressure type emulsifier used in the present invention applies a very high pressure in a pressurizing pump, passes through an interaction chamber made of diamond of a minute size, which is hollow like a pipe, As a special device that can make particles with nano size by using a vacuum phenomenon called cavitation with a unique structure, the force for crushing particles is much stronger than a conventional mixer.

According to another preferred embodiment of the present invention, it is possible to provide a cosmetic composition comprising the nanoemulsion composition, and also to provide a cosmetic comprising the cosmetic composition. The cosmetic may be any one selected from the group consisting of a skin lotion, a milk lotion, an essence, an ampoule, a nutritional cream, an eye cream, a foundation, a bib cream, a seed cream, a sun cream, a lipstick, a lipstick and a cosmetic combination of one or more thereof.

As described above, the cosmetic material according to the present invention has a nano-size according to the above-described manufacturing method, and has a structure very similar to that of the skin cell membrane, so that it is possible to reduce skin irritation caused by chemical stress when using a conventional synthetic emulsifier in sensitive skin In addition, transparency can be improved to minimize the difference in suspension occurring in application to cosmetics, and it is possible to visually confirm transparency in the production of the composition, thereby facilitating spec control and making nano-sized emulsion, It is highly advantageous and has a high sustained effect of the physiologically active substance.

Therefore, the nano-emulsion cosmetic containing the high-content natural oil with improved transparency according to the present invention is applicable to all cosmetic formulations such as essence, nutrition cream, sun cream, skin lotion, milk lotion and the like.

Hereinafter, embodiments of the present invention will be described in detail so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

[Examples 1 to 2 and Comparative Examples 1 to 4] Nano-emulsion cosmetic composition containing a high-content natural oil having improved transparency and a manufacturing method thereof

A nano-sized emulsion composition for cosmetics was prepared according to the composition shown in the following Table 1, and the preparation method thereof is as follows. The water phase was charged into a vacuum emulsification tank capable of temperature control and agitation, heated to a temperature of 75 ° C, and the oily phase was further charged into an oily dissolution tank capable of warming and stirring, and heated to 75 ° C. The oily phase prepared in the vacuum emulsification tank containing the water phase was charged and stirred for 8 minutes at a rate of 2,500 rpm using a homomixer while maintaining the temperature at 75 DEG C to perform primary emulsification to form bulky spherical liposomes, This was cooled to 50 < 0 > C. A Bulky spherical liposome encapsulated with a physiologically active substance was added to a high pressure type microfluidizer at 35 ° C and treated with a pressure of 1,000 bar three times to secondary emulsify to obtain a high- Was prepared.

The particle size of the nano-emulsion composition of Example 1 was analyzed and shown in Fig. 1, and the transparency (property) of the nanoemulsion compositions of Example 1, Comparative Example 1, Comparative Example 2 and Comparative Example 3, Are shown in Fig.

division ingredient Content (% by weight) Example 1 Example 2 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Water top Purified water Balance Balance Balance Balance Balance Balance Hydrogenated lecithin 0.2 0.5 0.05 0.1 0.5 1.0 Sodium stearoyl glutamate 0.45 0.2 0.1 0.45 0.5 0.4 glycerin 13 20 15 13 10 10 Floating Polyglyceryl-2 stearate 4.8 3.5 2.0 0.5 6.0 4.5 Phage-8 stearate 1.0 2.0 1.0 3.0 3.0 2.5 Cetostearyl alcohol 0.5 0.25 0.5 0.5 0.5 0.5 Stearic acid 0.5 0.75 0.5 0.5 0.5 0.5 Cyclopentasiloxane 10 7 10 10 7 2 Apricot seed oil 17 20 17 17 20 30 antiseptic 0.3 0.3 0.3 0.3 0.3 0.3 Appearance Transparency Transparency suspension suspension suspension suspension

The properties of the nanoemulsion compositions of Example 1 and Example 2 were checked, and as a result, transparency was improved. Particularly, the nano-emulsion composition of Example 1 was examined for the distribution and size of nanoparticles using a particle size analyzer (NANOPHOX, Sympatec, Germany) as shown in Fig. 1, and the average particle size was 10 to 50 nm , It was confirmed that the nanocrystals were formed in a size of 20 to 50 nm, more preferably 20 to 40 nm.

On the other hand, as in Comparative Example 1, sodium stearoylglutamate was contained in an amount of less than 0.2% by weight and phospholipid in less than 0.1% by weight, or in Comparative Example 2, polyglyceryl-2-stearate was contained in an amount of less than 1.0% 8 stearate in an amount of more than 2.5% by weight, or as in Comparative Example 3, more than 5.0% by weight of polyglyceryl-2 stearate and more than 2.5% by weight of phage-8 stearate, When the content exceeds 20% by weight, an emulsion is formed, but as can be seen in FIG. 2, it is confirmed that the present invention is not suitable for improvement of transparency, which is a main effect of the present invention.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, Of the right.

Claims (10)

An aqueous phase comprising 0.1 to 2.0% by weight of a natural phospholipid derived from soybean, 10 to 20% by weight of glycerin and 0.2 to 0.5% by weight of sodium stearoylglutamate, based on the total weight of the total nanoemulsion composition;
An oil phase comprising 5 to 25% by weight of a natural oil, 5 to 12% by weight of a silicone oil, 0.1 to 2.0% by weight of a fatty acid and 1.0 to 6.0% by weight of an ionic surfactant based on the total weight of the total nanoemulsion composition; Composition. The method according to claim 1,
The soy-derived natural phospholipid comprises hydrogenated lecithin,
The natural oil may be any one selected from the group consisting of apricot seed oil, macadamia nut oil, almond oil, limnandes alba seed oil, jojoba oil, caprylic / capric triglyceride, and mixtures containing at least one thereof ≪ / RTI &
Wherein the silicone oil comprises cyclopentasiloxane,
Wherein the fatty acid comprises 0.2-1.0 wt% cetostearyl alcohol and 0.2-1.0 wt% stearic acid based on the total weight of the total nanoemulsion composition,
The ionic surfactant may comprise 1.0 to 5.0% by weight of polyglyceryl-2 stearate, PEG (Polyethylene Glycol) -8 Stearate, based on the total weight of the total nanoemulsion composition, By weight of the nanoemulsion composition. The method according to claim 1,
Wherein the water phase comprises any one selected from the group consisting of purified water, Centella asiatica extract, mashii extract, chamomile flower extract, chestnut extract, burdock root extract, mushroom extract, And 50 to 70% by weight based on the weight of the nanoemulsion composition. The method according to claim 1,
Wherein the nano-liquid crystal emulsion composition comprises nano-emulsion particles having an average particle size of 20 to 50 nm. A step of preparing an aqueous phase containing soybean-derived natural phospholipids, glycerin and sodium stearoylglutamate;
Natural oils selected from the group consisting of apricot seed oil, apricot seed oil, macadamia nut oil, almond oil, limnad des albacead oil, jojoba oil, caprylic / capric triglyceride and mixtures comprising at least one thereof, silicone Oil, fatty acid and an ionic surfactant;
A first emulsification step of adding a water phase and an oil phase to produce a bulky spherical emulsion by using a vacuum emulsification tank and a homomixer; And
A second emulsification step of preparing the bulky spherical emulsion by using a high pressure type microfluidizer as a nano emulsion;
≪ / RTI > 6. The method of claim 5,
Wherein the step of preparing the water phase and the step of producing the oil phase each comprise stirring at a temperature of 70 to 80 DEG C,
Wherein the first emulsifying step comprises stirring at a temperature of 70 to 80 DEG C at a rate of 1,000 to 3,000 rpm,
Wherein the second emulsification step comprises performing at least once at a pressure of 500 to 1500 bar at a temperature of 20 to 40 ° C. 6. The method of claim 5,
Wherein the water phase comprises 0.1 to 2.0% by weight of the soybean-derived natural phospholipid, 10 to 20% by weight of the glycerin and 0.2 to 0.5% by weight of the sodium stearoylglutamate based on the total weight of the total nanoemulsion composition, Wherein the composition further comprises 50 to 70% by weight of any one solvent selected from the group consisting of a centilla mushroom extract, a mushroom extract, a chamomile flower extract, a chrysanthemum extract, a burdock root extract, a mushroom extract,
Wherein the oil phase comprises 5 to 25% by weight of the natural oil, 5 to 12% by weight of cyclopentasiloxane as the silicone oil, 0.2 to 1.0% by weight of cetostearyl alcohol as the fatty acid, 0.2 to 1.0% by weight of said ionic surfactant, 1.0 to 5.0% by weight of polyglyceryl-2 stearate and 0.5 to 2.5% by weight of phage-8 stearate as said ionic surfactant. A cosmetic composition comprising the nanoemulsion composition of claim 1. A cosmetic comprising the cosmetic composition of claim 8. 10. The method of claim 9,
Wherein the cosmetic is one selected from the group consisting of a skin lotion, a milk lotion, an essence, an ampoule, a nutritional cream, an eye cream, a foundation, a bib cream, a seed cream, a sun cream, a lipstick, a lipstick and a cosmetic combination of at least one thereof.

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